Lug protector



March 6, 1951 w. T. GIBSON ET AL LUG PROTECTOR Filed Oct. 17, 1945FIE-2- lowenlars: W44 T5? 7? 07/550 6m MAL/4M A. ZEMBE/PEK @mow g ,bava

Patented Mar. 6, 1951 LUG PROTECTOR Walter '1. Gibson, Dravosburg, andWilliam L.

Zemberry, Pittsburgh, Pa., assignors to National Tube Company, acorporation of New Jersey Application October 17, 1945, Serial No.622,814

1 Claim. 1

This invention relates to lug protectors and more particularly toprotectors for lugs on cylinders and the like.

Attaching lugs are frequently welded to cylinders, such as aerojetcylinders which are secured to the fuselage or underside of aeroplanewings to assist heavily loaded planes in taking off from short fields orcarrier decks. In such cases, there are two sets of lugs secured to eachcylinder. A single lug at the forward end, and a double lug at therearward end. Since dam-\ age to such lugs necessitates discarding thecylinders, it is essential that they be well protected. In addition,since such articles are shipped long distances and frequently incarriers wherein space is at a premium, it is very desirable that theprotectors do not add appreciably to the weight or size of the article.

It is accordingly an object of the present invention to provide a lightweight protector for cylinder lugs.

It is another object to provide a cylinder lug protector which is simplein design and reliable in use.

It is a further object to provide a cylinder lug protector which iseconomical to manufacture and which occupies a minimum of space.

The foregoing and further objects will be apparent from thespecification and drawing, wherein:

Figure 1 is a longitudinal section of our improved lug protector;

Figure 2 is an end View;

Figure 3 is a longitudinal section of a modification; and

Figure 4 is an end view thereof.

Referring more particularly to the drawing, the letter C designates acylinder to which is welded a lug L composed of two outwardly projectingleg portions 4 having a bolt 6 cross-connecting the outer ends thereof.

Disposed about the lug L is the protector P of our invention consistingof a generally U- shaped cover portion 8 from which inwardly projectingtongues l have been punched. The lower ends l2 of the legs of theU-shaped cover are provided to fit the circumference of the cylinder C.The tongues ID are adapted to fit between the leg portions 4 of the lugand prevent transverse or lateral movement of the protector. Theprotector is held on the lug by loopin and tying a strand of wire l4around the top of the protector through the holes l6, resulting frompunching out the tongue, so as to engage the underside of pin 6connecting the outer ends of the leg portions 4 of the lug. Thus, theprotector is securely held over the lug by the tie wire it and isprevented from transverse movement by the tongues lo engaging the legs4.

A modified form of protector is shown in Figures 3 and 4, which isadapted to fit over the double lugs used on the rear end of aerojetcylinders. This protector P is generally similar to the protector P forsingle lugs except that it is longer and has two pairs of inwardlystruck tongue portions I 6' adapted to engage the legs of "the lugs L.As in the single protector, it is held on the cylinder by tie wires M.

In both cases, the cover members 8 and 8' are formed of sufficientlyheavy sheet metal to absorb shock incident to rough handling or droppingand thereby prevent any damage to the lugs.

While we have shown and described two specific embodiments of ourinvention, it will be understood that these embodiments are merely forthe purpose of illustration and description and that various other formsmay be devised within the scope of our invention, as defined in theappended claim.

We claim:

In combination with a cylinder having U- shaped lugs mountedtransversely thereof, a sheet metal protector for said lugs comprising aU-shaped piece of sheet metal having upstanding legs, the closed end ofsaid U-shaped piece of sheet metal forming a cover portion for saidlugs, inwardly struck tongues on said leg portions extending between thelegs of said lugs, the lower ends of said legs being profiled to engagesaid cylinder and means extending through the struck out portions ofsaid legs engaging a pin extending between the legs of said U-shapedlugs to hold said protector on said cylinder.

WALTER T. GIBSON. WILLIAM L. ZEMBERRY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,968,877 Cubberley Aug. 7, 19342,243,625 Gettleman May 27, 1941 2,314,942 Hinchcliff Mar. 30, 19432,412,420 Parsons et a1 Dec. 10, 1946

